# Compositionally graded titanium to aluminum processed by laser powder bed fusion process: Microstructure evolution and mechanical properties

https://mdr.nims.go.jp/datasets/c250eb5b-7c53-4869-b59a-2085e9baa8b8

## File

- [P.Daram, et.al-2024_Compositionally graded titanium to aluminum processed by laser powder bed fusion process- Microstructure evolution and mechanical properties.docx](https://mdr.nims.go.jp/filesets/e3e6d495-59a9-4c87-b5d0-13dc38d2ac12/download) ([Detail](https://mdr.nims.go.jp/filesets/e3e6d495-59a9-4c87-b5d0-13dc38d2ac12.md))

## Id

c250eb5b-7c53-4869-b59a-2085e9baa8b8

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-06-21T04:06:50.830553Z

## Updated at

2024-06-24T01:01:25.115129Z

## Published at

2026-05-15T23:25:03.760857Z

## Doi

https://doi.org/10.48505/nims.4553

## First published url

https://doi.org/10.1016/j.msea.2024.146638

## Date published

2024-05-15

## Recorded date published

2024-6

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: 'Compositionally graded titanium to aluminum processed by laser powder bed
    fusion process: Microstructure evolution and mechanical properties'
  title_type: original
  lang: en

## Description

- description: 'A compositionally graded Ti-Al alloy with a designed composition range
    from pure Ti to pure Al was successfully produced by a laser powder bed fusion
    (L-PBF) system equipped with two powder feeders. The compositionally graded Ti-Al
    profile is confirmed by scanning electron microscopy, X-ray diffraction analysis,
    electron backscatter diffraction microscopy, and transmission microscopy. The
    graded material is free of macro-horizontal cracks, but micro-cracks appear at
    the center of the sample. Varying the Ti and Al ratio along the build direction
    induces microstructural changes, transforming alpha+beta-Ti into solid solution,
    creating intermetallics (Ti and Al), and yielding an Al phase with diverse morphologies.
    Additionally, the Ti-Al ratio’s influence on microstructure formation and phase
    evolution results in varying mechanical properties among the graded material’s
    layers. The results demonstrate that the L-PBF process can achieve continuous
    compositional grading of Ti-Al materials in a single run. Moreover, this study
    hold the potential to facilitate the design and production of numerous compositional
    variants for high entropy alloys and multi-materials, enabling future investigation
    into microstructural evolution, phase transformation, and physical and mechanical
    properties. '
  description_type: abstract
  lang: en

## Creator

- name: Phuangphaga Daram
  role: author
  orcid: https://orcid.org/0000-0001-8937-6319
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Alok Singh
  role: author
  orcid: https://orcid.org/0000-0001-5515-8305
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takanobu Hiroto
  role: author
  orcid: https://orcid.org/0000-0002-6176-5782
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Tomonori Kitashima
  role: author
  orcid: https://orcid.org/0000-0003-0828-7483
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Makoto Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-5064-9583
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Laser powder bed fusion process
  schema: not_defined
- subject: Compositionally graded materials
  schema: not_defined
- subject: Ti–Al alloy
  schema: not_defined
- subject: Microstructure
  schema: not_defined
- subject: Mechanical properties
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-05-15
end_date: 2026-05-16

## Journal

- title: 'Materials Science and Engineering: A'
  issn: '09215093'
  volume: '903'
  article_number: '146638'

## Conference



## Related item



## Funding

- identifier: JP21K03814
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Custom property



## Fileset

- id: e3e6d495-59a9-4c87-b5d0-13dc38d2ac12
  filename: P.Daram, et.al-2024_Compositionally graded titanium to aluminum processed
    by laser powder bed fusion process- Microstructure evolution and mechanical properties.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 30706373
  md5: 8ef0553586e2f62907d1d4ed0b9dea7a

## Thumbnail

fileset_id: e3e6d495-59a9-4c87-b5d0-13dc38d2ac12
filename: P.Daram, et.al-2024_Compositionally graded titanium to aluminum processed
  by laser powder bed fusion process- Microstructure evolution and mechanical properties.docx